Perched high above the pretty village of Castleton, the castle offers breathtaking views of the Peak District. Founded soon after 1066 by William Peverel, one of William the Conqueror's most trusted knights, it played an important role in guarding the Peak Forest.

Henry II made a number of additions to 'Castle Peak' (as it was known in the Middle Ages). Most notable is the great square keep with its round-headed windows, built in 1176. Thirteenth- century developments included the great hall, and though by 1400 the fortress had ceased to be strategically important, its impregnability guaranteed its continued use as a prison. Following extensive conservation work on the keep, a walk-way at first floor level enables visitors to enter two previously inaccessible chambers: a medieval garderobe, and a small room with beautiful views.

Displays in the visitor centre tell the story of Peveril as the focal point of the Royal Forest of the Peak, a royal hunting preserve since the 11th century.